🧫
iPSC-derived astrocyte-neuron co-culture mitochondrial transfer in PD model
active
experiment
Created: 2026-04-10T23:11:11
By: etl-v1-backfill
Quality:
50%
✓ SciDEX
ID: exp-463433e7-1dac-40a4-853d-c91096f59194
🧫 Experiment Protocol
ExploratoryParkinson's diseaseiPSC-derived dopaminergic neurons and astrocytes, hESC-derived cellsproposed
This study investigated whether iPSC-derived astrocytes can serve as mitochondrial donors to rescue injured dopaminergic neurons in an in vitro Parkinson's disease model. The researchers generated dopaminergic neurons and astrocytes from human iPSCs and hESCs, then established an astroglial-neuronal co-culture system. They used rotenone exposure to create neuronal injury mimicking PD pathology. The study examined intercellular mitochondrial transfer using Mito-Tracker Green labeling and tracked the transfer using immunocytochemistry and FACS analysis. Key findings included that healthy iPSC-derived astrocytes spontaneously release functional mitochondria into culture media, these mitochondria are internalized by injured neurons via a phospho-p38 dependent pathway, and the transferred mitochondria can significantly reverse dopaminergic neurodegeneration and axonal pruning caused by rotenone exposure. When astrocytic conditioned media was depleted of mitochondria by ultrafiltration, the neuroprotective effects were abolished, confirming that mitochondrial transfer was responsible for the rescue effect.
PRIMARY OUTCOME
rescue of dopaminergic neuron degeneration and axonal pruning
EXPECTED OUTCOMES
iPSC-derived astrocytes would release functional mitochondria that could be transferred to injured neurons and provide neuroprotective effects
SUCCESS CRITERIA
Significant reversal of dopaminergic neurodegeneration and axonal pruning, detection of astrocytic mitochondria in neurons, loss of protection when mitochondria depleted from conditioned media
PROTOCOL
1. Establish iPSC-derived dopaminergic neurons and astrocytes, hESC-derived cells cohorts for Parkinson's disease and predefine inclusion, exclusion, and quality-control criteria before intervention. 2. Apply the experimental manipulation described for the nominated disease mechanism, alongside matched control or comparator arms, and document dose, exposure window, and sample timing in a locked protocol log. 3. Measure rescue of dopaminergic neuron degeneration and axonal pruning together with orthogonal secondary readouts such as molecular, imaging, behavioral, or safety endpoints that are appropriate to the title and study design. 4. Use blinded outcome assessment where feasible, prespecified statistical analysis, and replicate the core readout across biological replicates or an independent validation subset. 5. Interpret results against the baseline study rationale: This study investigated whether iPSC-derived astrocytes can serve as mitochondrial donors to rescue injured dopaminergic neurons in an in vitro Parkinson's disease model. The researchers generated dopaminergic neurons and astrocytes from human iPSCs and hESCs,
LINKED HYPOTHESES
h-immunity-6e54942b· Astrocyte C3aR Signaling as Bifurcation Point for A1/A2 Fateh-seaad-v4-5a7a4079· SIRT3-Mediated Mitochondrial Deacetylation Failure with PINK1/Parkin Mitophagy Dysfunctionh-ea85fbfb90· Excitatory Neuron Synaptic Dysfunction and Mitochondrial Stress via MAPT (tau)h-43f72e21· AMPK hypersensitivity in astrocytes creates enhanced mitochondrial rescue responsesh-1a34778f· Senescent Cell Mitochondrial DNA Release
Source: PMID 32345341 ↗
🧫 Experiment Extras
PATHWAY
mitochondrial function, phospho-p38 signaling pathway
MARKET PRICE
$0.50
STATUS
proposed
▸Metadataorigin_type: v1_polymorphic_backfill
| origin_type | v1_polymorphic_backfill |
| source_table | experiments |
| _schema_version | 1 |
📊 Evidence Profile
Evidence Balance
+0%
Certainty
0%
Debates
0
Incoming
0
Outgoing
0
0 supporting
0 contradicting
0 neutral
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